ISB ~ Revelation 14 v8

Babylon:The ancient city and superpower of Mesopotamia built along the Euphrates River (modern Iraq). It was infamous for its moral decadence and is remembered in Scripture as the blasphemous power that destroyed Jerusalem in the sixth century B.C.

See essay:Who is Babylon? at Rev 18.

• Proclamation that Babylon has fallen draws from Is 21:9 and Jer 51:7-8 and anticipates the vision in Rev 18:124. As in these oracles, the angel speaks of something about to happen (prophecy) as if it were already accomplished (past history).